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Finding the Fourth Proportional to 80,515.80, 111,107.34 and 44,703.54

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Solution

The fourth proportional to 80,515.80, 111,107.34 and 44,703.54 is: 61,688.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,515.80 : 111,107.34 = 44,703.54 : x
  2. Step 2: Convert to fraction form
    80,515.80/111,107.34 = 44,703.54/x
  3. Step 3: Cross multiply
    80,515.80x = 111,107.34 × 44,703.54
  4. Step 4: Simplify right side
    80,515.80x = 4,966,891,417.98
  5. Step 5: Solve for x
    x = 4,966,891,417.98/80,515.80
  6. Step 6: Final answer
    x = 61,688.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.